We just recently updated our old water water softener to a new Culligan HE Smart Softener. Excellent product! Being a "smart" softener it continuously monitors your water usage and recharges when necessary. Saving a lot of salt. It's got an app that updates you on satus, water usage, and maintenance. Very nice machine. Culligan of Winona was prompt, experienced, and accurate in our quote. Definitely would recommend!